Features: 1.Convenient ON/OFF switch design,enables you to use one side or two sides of the light independently. 2.No polarity wires,even who doesn’t know electricity can easily install the lights. 3.Built-in constant current circuit board,can provide up to 60000 hours working life. 4.With DC 12V battery,widely apply for RV,Camper,Boat,Trailer,Kitchen,Bedroom,etc.